Louver ventilator



1944- A. G. SIEBENLIS'IT 2,340,570

LOUVER VENTILATOR Filed June 27, 1941 V 3 Sheets-Sheet 1 1944- A. G. SIEBENLIST I 2,340,570

LOUVER VENTILATOR I Filed June 27, 1941 j s Sheets-Sheet 2 INVENTOR.

Feb. 1, 1944.

A. G. SIEBENLIST LOUVER VENTILATOR 3 Sheets-Sheet 3 Filed June. 27, 1941 Patented Feb. 1, 1944 LOUVER VENTILATOR Anthony G. Siebenlist, Milwaukee, Wis., asslgnonto Milcoi- Steel Company, Milwaukee, wish, a

corporation of Delaware Application June 27, 1941, serial No. 400,023

4 Claims.

The invention relates to ventilators and has more particular reference to a stationary louver ventilator having an improved construction of nailing flange for securing the device as a unit within an openingin a wood frame, brick or masonry wall.

The primary object of the invention is to provide an improved louver ventilator of the type permitting air circulation within a dwelling or the like so as to carry off the summer heat and relieve conditions of destructive humidity, a ventllator that can be easily installed and one that will be strong and rugged in construction.

Another object resides in the provision of 'a ventilator having a removable wire screen which will be securely held in place by means bent from the louver members and side walls of the frame. Another object is to provide an enclosing frame for the ventilator proper which will provide a the invention may consist of certain novel features of construction and operation as will be more fully described and particularly pointed out in the specification, drawings, and claims appended hereto.

In the drawings which illustrate an embodiment of the invention and wherein like reference characters are used to designate like parts Figure 1 is a front elevational view of the ventilator of the invention;

Figure 2 is a horizontal sectional view taken substantially along the line 22 of Figure 1 and illustrating the nailing flange provided by the removable frame forthe ventilator;

Figure 3 is an elevational view of the rear surface of the ventilator showing the wire screening and retaining means therefor;

Figure 4 is a. vertical sectional view taken substantially along line 4-4 of "Figure 3 and illustrating the arrangement of the louvers within the ventilator and the surrounding frame therefor providing the nailing flange;

Figure 5 is a detail sectional view illustratin the construction of the bottom wall of the surrounding frame for removably interlocking the frame with the ventilator;

Figure 6 is a perspective view of the said frame'clearly illustrating the nailing flange provided thereby and the construction of the bottom wall;

Figure '7 is a horizontal sectional view taken substantially along line 'Il of Figure 6; and

Figure 8 is a detail sectional view illustrating the interlocking structure provided by the bottom wall and bottom louver member of the ventilator. Referring to the drawings, the ventilator of the invention is substantially rectangular, having a plurality of louver members suitably secured within the side walls thereof and also having a wire screenremovably fastened to the rear. In accordance with the invention the ventilator proper is removably positioned within an enclosing frame which provides a nailing fiange'whereby the structure as a unit can be secured within an opening ina wood frame, brick or masonry wall. The enclosing frame is provided with an upstanding lip adapted to enter a slot formed by the bottom wall and bottom louver member of the ventilator for the purpose of removably retaining the ventilator within the enclosing frame. 1

As best shown in Figure 2, th rectangular frame of the ventilator indicated, by numeral In is formed by the side wals H and I2, the top wall 13, Figure 4, and the base member It, which has formed integrally therewith tabs IS on the respective sides, located within the side walls for securement thereto. The enclosing frame, Figures 2 and 6, indicated in its entirety by numeral I6, is likewise rectangular in shape and said frame is formed to provide -an opening of suflicient size to closely fit the ventilator and which is interlocked with the ventilator by novel structural means so as to effectively retain the parts in associated relation while permitting easy removal. The enclosing frame also provides marginal flanges ll which extend laterally outward from the ventilator so that the said flanges can be placed against a wood frame such as l8, Fig ure 2, and secured thereto by the nails H] to fasten the frame and thus the ventilator within the opening provided theerfor.

Referring more particularly to the ventilator proper, the side walls II and I2 and top wall l3. which may be integral therewith, are joined along the base by the member l4. Said member in ad'- dition to having the bent tabs 15 also provides an upstanding portion 20 which is shown in Figure 8 asspaced some distance from the depending front cured to said walls as by spot welding or other suitable means. Other louver members similarin construction to 22 are located within the ventilator opening. The members 25, 26, 21 and 26 are each disposed in proper spaced relation with each other and are substantially parallel to member 22. It will be understood that each member has downwardly bent tabs 23 on the respective ends thereof which are utilized in a manner as described to secure the same to the ventilator side walls. The top louver member 23 has a rear portion 30 which is bent around the rear edge of top wall I 3 and which may be suitably secured to said top wall. This construction insures a water-tight connection between the top and said louver member.

The wi e screen for the present ventilator is best shown in Figures 3 and 4, wherein it will be observed that the wire mesh screen 3| is held within a metal frame indicated by numeral 32. The frame is of a size to fit within the rear opening provided by the side walls, the bottom louver member 22, and the top louver member 23. The position of the wire screen frame within the opening is determined by upwardly bent ends on the louver members 25, 26 and 21 and the said wire screen frame is securely held within said opening by the upstanding retaining flange 24 and by the bent tabs 33 which engage the frame in the vicinity of the upper end thereof. It will be observed that the tabs are bent from the metal of the side walls ii and I2 and said tabs securely hold the frame in place although permitting ready removal since it is only necessary to bend the tabs outwardly.

The enclosing frame for the louver type ventilator is best shown in Figure 6. The side walls 34 and 35 are each formed by an independent metal strip and the metal strips are bent to provide an outwardly directed nailing flange ll at the rear of the frame and inwardly directed face flanges 36 and 31, respectively, at the front of the frame and of less width than the nailing flange. The top wall 38 also has a nailing flange I1 and a face flange 33 which, as shown, overlaps members 36 and 31 and is cut diagonally at the ends as at 40 for the purpose of improving the appearance of the frame. Numerals 4i indieate the locations wherein the nailing flanges of the respective members are spot welded for securement to each other.

The construction of the bottom. member 42 of I the enclosing frame is different from that of the top wall since the bottom provides an upstanding lip 43 which is spaced inwardly from the plane of th flange members 36, 31 and 39. and by reason of said construction the lip functions to retain the enclosing frame in connected relation with the ventilator. The metal strip from which the bottom wall is formed likewise provides a nailing flange l1 and the flanges from the side walls overlap therewith to permit securement of the parts to one another by the spot welding as at 4|. It will be observed that the depth of the side walls 34, 35 and 33 is substantially half that of walls ll, l2 and I3. Accordingly, with the ventilator in connected position within the enclosing frame the nailing flanges II extend laterally outward from around the perimeter of the ventilator and are located substantially one-half the total depth thereof.

The ventilator of the invention has the advantage that the same may be installed within an opening of'any thickness in a frame or brick wall and an absolutely-water-tight installation is insured by reason of the nailing flanges l1 which are positioned between the wood frame It and the facing brick work 29, as will be clearly understood by reference to Figure 2. Adequate ventilation is insured by the opening thus provided which is screened-and as a result of the downward and outward slope of the louver members rain is also prevented from entering the interior of the dwelling or other structure equipped with the present ventilator. The enclosing frame, designated in its entirety by numeral l6, provides a rectangular opening to Just fit the ventilator Hi. When inserted within the frame opening the ventilator has an interlocking connection with the frame as a result of the upstanding lip 43 on the bottom wall 42, which lip enters the slot provided by portion 20 and the depending front flange 2| of the base louver member of the ventilator. The connected relation of the parts is shown in Figure 4. The face flanges 36, 31 and 39 function as a stop to properly position the ventilator unit within the supporting frame-since said facing flanges have contact with the front edges of the side walls II and I2 and top wall l3, respectively. It will be observed that the walls 34 and 35 partly overlap the side walls and that top wall 36 partly overlaps the top wall l3 of the ventilator. Also the bottom wall 42 underlies the base member I4 of the ventilator. Actually the bottom wall of the ventilator is, formed .by the base louver member 22 since when viewed from the front the member 14 is not visible. The ventilator is securely held within the frame since the parts are designed to have a relatively tight flt and this relation is further maintained as a result of the interlocking connection which lip 43 of the frame has with the upstanding portion 20 and the depending front flange 2| of the base louver member. I

The invention is not to be limited to or by details of construction of the particular embodiment thereof illustrated by the drawings as various other forms 'of the device will of course be apparent to those skilled in the art without departing from the spirit of the invention or the scope of the claims.

What is claimed is:

1. In a ventilator, a ventilator unit providing a louver opening and comprising spaced parallel side walls, a top wall connected to the side walls, a base member also connected to the side walls, and a plurality of louvers within said opening having securement to the said side walls, said I louvers sloping downward and outward and the bottom louver having a frontdepending flange,

an upstanding portion associated with the base member and disposed rearwardly of and in spaced relation with the front flange to form a 'slot therewith,. a supporting frame in surroundand flanges extending laterally outward from at least two wall portions of said frame to form nailing flanges, said flanges being disposed substantially centrally of the depth of the ventilator uni 2. In a ventilator, a ventilator unit and supporting frame therefor as defined by claim 1 wherein the frame is additionally provided with at least one facing flange extending laterally inward from the front edge of a wall portion of the frame and adapted to have contact with a front edge of the ventilator unit when the frame and unit are in assembled relation. 1

3. A ventilator unit of the character described,

including spaced parallel side walls connected by a top wall and by a base member to form a louver opening, a plurality of louvers within said opening having securement to the side walls, said louverssloping downward and outward and the bottom louver having a front dependin flange, and a portion-projecting from the base member and positioned rearwardly of and in spaced relation with the front flange 'toform a erally inward from the front edges'cf the side walls and top wall respectively and all lying in substantially the same plane, and the bottom wall of the frame having a lip bent therefrom and disposed in a plane parallel to but spaced from the plane of the said facing flanges.

ANTHONY G. SIEBENLIST. 

